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72 results about "Carbendazole" patented technology

Chinese rose water planting cutting propagation method

A Chinese rose water planting cutting propagation method belongs to the field of research on plant propagation and aims to solve the problems that in Chinese rose cutting, the humidity and temperature are hard to control, a cutting base substrate easily carries diseases and insect pests, the cutting nutrition is quickly consumed and the like. The method can realize the cutting propagation annually, is good in environment controllability and has the survival rate of more than 95%. The method comprises the steps of selection and processing of cutting slips, preparation of a nutrient solution, water planting, daily management and seedling hardening and transplanting. The cutting slips are cut by 10-15cm, and are soaked in a 500-diluted 30% carbendazin emulsion for 5-15 minutes, the lower parts of the cutting slips are soaked in a 30-50mg/Kg ABT NO.2 rooting powder solution for 2-4 hours, are placed into a self-made cutting box, and are cultured by a 1/2 Hoagland nutrient solution of which the temperature is 20-25 DEG C, the cutting slips are aerated by 2-3 times every day, the nutrient solution is replaced every 7 days, when cutting seedling roots grow to 1-2cm long, the cutting slips are transplanted into a field, and are watered once every day, the watering frequency is gradually reduced after four days, direct light is avoided, and the cutting slips can survive in 8-10 days.
Owner:LINYI UNIVERSITY

Method for synthesizing albendazole

The invention relates to a method for synthesizing albendazole. The method comprises the following steps of: (a) adding carbendazim, sodium sulfocyanate and glacial acetic acid to a reactor, dropwise adding 28% hydrogen peroxide while controlling the temperature to be 25-40 DEG C, carrying out heat preservation and reaction for 4-6 hours after the dropwise adding process is completed, and obtaining thiocyanide after glacial acetic acid is recovered through negative-pressure distillation; and (b) adding 20% aqueous potassium hydroxide solution to the thiocyanide while adding benzyltriethylammonium chloride, then dropwise adding 1-bromopropane, and reacting for 4-8 hours while controlling the temperature to be 45-60 DEG C, thereby obtaining the albendazole. According to the method, the potential safety hazard caused by the fact that a highly toxic substance, namely chlorine gas, is used for preparing albendazole is avoided successfully, and the influence on the quality and yield of the product, caused by side reactions resulting from the adoption of the chlorine gas, is eliminated successfully, so that the quality and yield of an intermediate are improved greatly; meanwhile, the adoption of alkali sulfide is cancelled, and then, the environmental pollution caused by a byproduct, namely thioether, produced due to excessive alkali sulfide is avoided, so that the method is perfectly suitable for industrial production; and furthermore, all the raw materials are low in cost and are purchased easily, and the operation is safe.
Owner:苏州诚和医药化学有限公司

In vitro shoot culturing method of hydrangea paniculata

The invention discloses an in vitro shoot culturing method of hydrangea paniculata. The in vitro shoot culturing method comprises the steps of collecting explants; soaking the explants in washing powder, performing flushing with running water, performing soaking in mixed liquid of carbendazol and streptomycin, performing flushing with bacteria-free water, and then performing surface disinfection:performing soaking in 75% alcohol, performing flushing with the bacteria-free water, performing soaking in an HgCl2 solution and performing flushing with the bacteria-free water; trimming cutouts in two ends of each explant which is sterilized and disinfected, performing cutting to obtain stems with buds, and vertically inoculating the stems with buds in a starting culture medium; cutting tissue culture seedlings subjected to starting culture to obtain stems with buds, cutting off leaves which can be in contact with the culture medium, and perpendicularly inoculating the stems in a propagationculture medium; and performing propagation culture, then trimming basal parts of the tissue culture seedlings, transferring the trimmed tissue culture seedlings to a rooting culture medium, and inducing roots. The method is good in starting effects and low in browning rate and pollution rate, the browning rate is 0, the pollution rate is as low as 5%, the germination induction rate and the propagation coefficient are high, the fermination rate is 100%, the proliferation coefficient is as high as 7, the rooted seedlings are strong, the rooting rate is 100%, the average root quantity is 22, andthe average root length is 3.10cm.
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY

Transplanting transition method of insectivorous plant tissue culture seedlings

The invention relates to a transplanting transition method of insectivorous plant tissue culture seedlings, and belongs to the technical field of transplanting of insectivorous plant cultured seedlings. The insectivorous plant tissue culture seedlings are used as transplanting targets, transplanting is performed in the following manner of flushing roots of rooting seedlings, performing soaking with 1000-1250ppm thiophanate methyl or carbendazol for 10-15min, selecting a mixture of perlite and turf in the volume ratio being (1.5-2) to 1 as cultivation substrates, performing cultivation under the condition of light shading being 78-80% for 15-20 days, performing cultivation under the condition of light shading being 30-40% for 15-20 days, performing full-light cultivation for 10 days, and counting survival rate. According to the transplanting transition method disclosed by the invention, seedling hardening is not needed for transplanting, and after culture mediums are thoroughly cleaned,transplanting is directly performed; besides, through control and management in a transplanting process, higher transplanting survival rate can be achieved; and besides, in the transplanting process,a management manner is simple, too much time and too many human resources do not need to be consumed, and the growth period of insectivorous plants can be shortened.
Owner:FLOWER RES INST OF YUNNAN ACAD OF AGRI SCI

Method for preparing albendazole

The invention relates to a method for preparing albendazole. The method comprises the following steps of: (a) adding carbendazim, sodium sulfocyanate and glacial acetic acid to a reactor, dropwise adding 28% hydrogen peroxide while controlling the temperature to be 25-40 DEG C, carrying out heat preservation and reaction for 4-6 hours after the dropwise adding process is completed, and obtaining thiocyanide after glacial acetic acid is recovered through negative-pressure distillation; and (b) adding 20% aqueous potassium hydroxide solution to the thiocyanide while adding benzyltriethylammonium chloride, then dropwise adding 1-bromopropane, and reacting for 4-8 hours while controlling the temperature to be 45-60 DEG C, thereby obtaining the albendazole. According to the method, the potential safety hazard caused by the fact that a highly toxic substance, namely chlorine gas, is used for preparing albendazole is avoided successfully, and the influence on the quality and yield of the product, caused by side reactions resulting from the adoption of the chlorine gas, is eliminated successfully, so that the quality and yield of an intermediate are improved greatly; meanwhile, the adoption of alkali sulfide is cancelled, and then, the environmental pollution caused by a byproduct, namely thioether, produced due to excessive alkali sulfide is avoided, so that the method is perfectly suitable for industrial production; and furthermore, all the raw materials are low in cost and are purchased easily, and the operation is safe.
Owner:苏州诚和医药化学有限公司

Seedling culture method capable of effectively reducing occurrence of rust of herba solidaginis

InactiveCN111034545AGuaranteed normal growthAchieve the effect of preventionBiocideAnimal repellantsDiseased plantThinning
The invention discloses a seedling culture method capable of effectively reducing occurrence of rust of herba solidaginis. The seedling culture method comprises the following steps of selecting seed sources, performing collection and storage, treating seeds, selecting nursery gardens, treating nursery beds, performing sowing, performing temperature and humidity control and ventilation, performingfilm removal and seedling thinning-out, performing transplanting and weeding, performing disease prevention and topdressing, and performing irrigation and seedling lifting. According to the seedling culture method disclosed by the invention, before 5 days of sowing, compartment surfaces are sprayed with a mixture of 50% carbendazol and water of which the volume is 750 times of the 50% carbendazol,when the height of seedlings is 5cm, a mixture of chlorothalonil wettable powder and water of which the weight is 1000 times of the chlorothalonil wettable powder, a mixture of 50% carbendazol and water of which the volume is 1000 times of the 50% carbendazol, and a mixture of 70% thiophanate methyl and water of which the volume is 1000 times of the 70% thiophanate methyl are sprayed every 16 days, and can be alternatively used in batch considering the drug resistance of diseased plants, and when the height of the seedlings is 5-50cm, a mixed solution of 0.3% urea and 0.2% potassium dihydrogen phosphate, being 30kg/667m<2>, is sprayed every 16 days, so that the effect of prevention with medicaments can be achieved.
Owner:GUIZHOU CROP VARIETIES RESOURCE INST
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